Add Track Colorization

config.js

@@ -1,4 +1,5 @@
 'use strict';
+import {Color} from './js/colorlib.js';
 
 export const gradeColors = {
     grade_flat: '#fff',
@@ -13,3 +14,18 @@ export const gradeColors = {
     grade_8: '#a3008d',
     grade_9: '#690097',
 }
+
+export const speedGradient = [
+    new Color('#370065'),
+    new Color('#79146e'),
+    new Color('#d53354'),
+    new Color('#fa8256'),
+    new Color('#fbffb2'),
+]
+
+export const altitudeGradient = [
+    new Color('#340042'),
+    new Color('#235f7b'),
+    new Color('#51c34e'),
+    new Color('#fce51e'),
+]

index.html

@@ -239,6 +239,9 @@
                     <h3>Key</h3>
                     <hr>
                     <div id="legendKey"></div>
+                    <hr>
+                    Track Colors:
+                    <div id="legendKeyColors"></div>
                 </div>
                 <div id="settingsPanel" class="panel">
                     <h3>Map Settings</h3>

index.js

@@ -288,6 +288,8 @@ function establishDimensions(){
         x2: maxX,
         y1: minY,
         y2: maxY,
+        minAlt: minAlt,
+        maxAlt: maxAlt,
         width: width,
         height: height,
         fixY: yIn => {
@@ -503,8 +505,11 @@ function sortTracks(){
     }
 }
 
-function setTrackColorMode(mode){
-    let modeFunction = null;
+export function setTrackColorMode(mode){
+    let modeFunction;
+    const keyElement = document.getElementById('legendKeyColors');
+    let gradientString = '';
+    keyElement.innerHTML = '';
     switch(mode){
         case 'Track Type':
             modeFunction = (section, curve) => {
@@ -515,30 +520,73 @@ function setTrackColorMode(mode){
                 else if(curve.isTurntable) finalColor = '#b4f';
 
                 section.element.setAttribute('stroke', finalColor);
-            }
+            };
+            keyElement.innerHTML = `
+            <span class="colorKey"><span style="background:#4bf"></span> Designated Yard</span>
+            <span class="colorKey"><span style="background:#4fb"></span> Other Yard</span>
+            <span class="colorKey"><span style="background:#fb4"></span> Point</span>
+            <span class="colorKey"><span style="background:#b4f"></span> Turntable</span>
+            <span class="colorKey"><span style="background:#aaa"></span> Other Tracks</span>`;
             break;
         case 'Grade':
             modeFunction = section => {
                 section.element.setAttribute('stroke', Config.gradeColors['grade_'+section.gradeClass]);
             };
+            for(let grade in Config.gradeColors){
+                keyElement.innerHTML += `<span class="colorKey" style="${grade.replace('grade_','') < 6 || grade == 'grade_flat' ? 'color:#000;' : ''}padding:0px 3px;background:${Config.gradeColors[grade]}">${(Utils.classToGrade(grade.replace('grade_',''))*100).toFixed(1)}%</span>`;
+            }
+            break;
+        case 'Altitude':
+            modeFunction = section => {
+                section.element.setAttribute('stroke', Color.blendGradient(Config.altitudeGradient, (section.position.y-MapMatrix.minAlt)/(MapMatrix.maxAlt-MapMatrix.minAlt)).hex);
+            }
+            gradientString = 'linear-gradient(to right';
+            for(let col of Config.altitudeGradient) gradientString += ', '+col.hex;
+            gradientString += ')';
+            
+            keyElement.innerHTML = `
+            <div style="display:flex">
+                <div>${Math.floor(MapMatrix.minAlt)}m</div>
+                <div class="gradientKey" style="flex-grow:1;background:${gradientString}"></div>
+                <div>${Math.ceil(MapMatrix.maxAlt)}m</div>
+            </div>
+            `;
+            break;
+        case 'Speed':
+            modeFunction = section => {
+                section.element.setAttribute('stroke', Color.blendGradient(Config.speedGradient, (section.postedSpeed+10)/110).hex);
+            };
+            
+            gradientString = 'linear-gradient(to right';
+            for(let col of Config.speedGradient) gradientString += ', '+col.hex;
+            gradientString += ')';
+            keyElement.innerHTML = `
+            <div style="display:flex">
+                <div>10 kmh</div>
+                <div class="gradientKey" style="flex-grow:1;background:${gradientString}"></div>
+                <div>120 kmh</div>
+            </div>
+            `;
             break;
         case 'Track Random':
             modeFunction = (section, curve) => {
-                section.element.setAttribute('stroke', curve.randomColor);
-            }
+                section.element.setAttribute('stroke', curve.randomColor.hex);
+            };
+            keyElement.innerHTML = 'Random per continuous track section';
             break;
-        case 'Section Random':
+        case 'Curve Random':
             modeFunction = section => {
-                section.element.setAttribute('stroke', section.randomColor);
-            }
+                section.element.setAttribute('stroke', section.randomColor.hex);
+            };
+            keyElement.innerHTML = 'Random per individual track bezier curve';
             break;
         default:
             modeFunction = section => {
                 section.element.setAttribute('stroke', '#fff');
-            }
+            };
             break;
     }
-    if(modeFunction !== null){
+    if(modeFunction != null){
         for(let curve of mapData){
             for(let section of curve.points){
                 if(!section.element) continue;

js/utillib.js

@@ -26,6 +26,12 @@ export function gradeToClass(grade){
     return 'flat';
 }
 
+export function classToGrade(className){
+    let classNum = Math.min(Math.max(Number(className), 0), gradeIncrements.length-1);
+    if(Number.isNaN(classNum)) return 0;
+    return gradeIncrements[gradeIncrements.length-1-classNum];
+}
+
 /**
  * Outputs an easy to read time interval between `date1` and `date2`
  * @param {Date} date 

legend.js

@@ -2,8 +2,27 @@
 
 import * as Utils from './js/utillib.js';
 import * as Config from './config.js';
+import { Color } from './js/colorlib.js';
+import { setTrackColorMode } from './index.js';
 
 let settingEntries = [
+    {
+        label: 'Color Mode',
+        id: 'dropdown_trackColor',
+        options: [
+            'None',
+            'Grade',
+            'Altitude',
+            'Speed',
+            'Track Type',
+            'Track Random',
+            'Curve Random',
+        ],
+        default: 'Grade',
+        func: state =>{
+            setTrackColorMode(state);
+        }
+    },
     {
         label: 'Signage',
         id: 'toggle_signage',
@@ -56,15 +75,6 @@ let settingEntries = [
             },
         ]
     },
-    {
-        label: 'Track Color',
-        id: 'radio_trackColor',
-        options: [
-            'None',
-            'Grade',
-        ],
-        default: 1,
-    },
 ];
 
 const legendKey = document.getElementById('legendKey');
@@ -93,21 +103,15 @@ document.addEventListener('DOMContentLoaded', async () => {
 
 function addSettingEntry(thisSetting, parent, indent=0){
     thisSetting.divContainer = document.createElement('div');
-    thisSetting.inputElement = document.createElement('input');
-    thisSetting.inputElement.style.margin = `0 0.5em 0 ${indent}em`;
     thisSetting.labelElement = document.createElement('label');
-    parent.appendChild(thisSetting.divContainer);
-    thisSetting.divContainer.appendChild(thisSetting.inputElement);
     thisSetting.divContainer.appendChild(thisSetting.labelElement);
-    
+
     let settingType = thisSetting.id.split('_')[0];
     switch(settingType){
         case 'toggle':
+            thisSetting.inputElement = document.createElement('input');
             thisSetting.inputElement.type = 'checkbox';
-            thisSetting.inputElement.id = thisSetting.id;
             thisSetting.inputElement.checked = thisSetting.state;
-            thisSetting.labelElement.innerHTML = thisSetting.label;
-            thisSetting.labelElement.htmlFor = thisSetting.id;
 
             if(thisSetting.func){
                 thisSetting.inputElement.addEventListener('input', e =>{
@@ -120,10 +124,50 @@ function addSettingEntry(thisSetting, parent, indent=0){
                 });
             }
             break;
+        case 'dropdown':
+            thisSetting.inputElement = document.createElement('select');
+            for(let inputEntry of thisSetting.options){
+                let optionElement = document.createElement('option');
+                if(typeof(inputEntry) == 'object'){
+                    optionElement.value = inputEntry[0];
+                    optionElement.innerHTML = inputEntry[1];
+                }else{
+                    optionElement.value = inputEntry;
+                    optionElement.innerHTML = inputEntry;
+                }
+                if(inputEntry == thisSetting.default) optionElement.selected = true;
+                thisSetting.inputElement.appendChild(optionElement);
+            }
+            if(thisSetting.func){
+                thisSetting.inputElement.addEventListener('change', e =>{
+                    thisSetting.func(e.target.value);
+                })
+            }
+            break;
+        case 'slider':
+            thisSetting.inputElement = document.createElement('input');
+            thisSetting.inputElement.type = 'range';
+            thisSetting.inputElement.min = thisSetting.min ?? 0;
+            thisSetting.inputElement.max = thisSetting.max ?? 100;
+            thisSetting.inputElement.step = thisSetting.step ?? 1;
+            if(thisSetting.func){
+                thisSetting.inputElement.addEventListener('input', e => {
+                    thisSetting.func(e.target.value);
+                });
+            }
+            break;
         default:
             thisSetting.divContainer.remove();
             return;
     }
+    parent.appendChild(thisSetting.divContainer);
+    thisSetting.labelElement.innerHTML = thisSetting.label;
+    thisSetting.labelElement.htmlFor = thisSetting.id;
+    thisSetting.inputElement.id = thisSetting.id;
+
+    thisSetting.inputElement.style.margin = `0 0.5em 0 ${indent}em`;
+    thisSetting.divContainer.prepend(thisSetting.inputElement);
+
     if(thisSetting.children){
         for(let child of thisSetting.children){
             addSettingEntry(child, parent, indent+1);

style.css

@@ -90,6 +90,10 @@ a:visited{
     columns: 2;
 }
 
+#legendKeyColors{
+    overflow-wrap:break-word;
+}
+
 #legend{
     transition: transform 400ms cubic-bezier(0.445, 0.050, 0.550, 0.950);
     display: flex;
@@ -143,10 +147,19 @@ a:visited{
     background: linear-gradient(#444, #333);
 }
 
-.inlineSvg {
+.colorKey, .gradientKey{
+    border:1px #858585 solid;
+    border-radius: 4px;
+    display: inline-block;
+    margin: 2px 1px;
+    padding: 1px 3px;
+}
+
+.inlineSvg, .colorKey>span{
     width: 1em;
     height: 1em;
     vertical-align: -0.1em;
+    display: inline-block;
 }
 
 .poi{